relatively convex - определение. Что такое relatively convex
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Что (кто) такое relatively convex - определение

MEASURE USED IN CONSERVATION BIOLOGY
Critical/endangered; Relatively stable/relatively intact

convex hull         
  • A [[bagplot]]. The outer shaded region is the convex hull, and the inner shaded region is the 50% Tukey depth contour.
  • Convex hull of a bounded planar set: rubber band analogy
  • Convex hull of points in the plane
  • Convex hull ( in blue and yellow) of a simple polygon (in blue)
  • 2019}} Mg<sub>2</sub>C<sub>3</sub> is expected to be unstable as it lies above the lower hull.
  • An [[oloid]], the convex hull of two circles in 3d space
  • Partition of seven points into three subsets with intersecting convex hulls, guaranteed to exist for any seven points in the plane by [[Tverberg's theorem]]
  • The [[witch of Agnesi]]. The points on or above the red curve provide an example of a closed set whose convex hull is open (the open [[upper half-plane]]).
NOTION IN TOPOLOGICAL VECTOR SPACES
Convex envelope; Closed convex hull; Convex Hull; Convex span; Convex closure; Minimum convex polygon; Applications of convex hulls
<mathematics, graphics> For a set S in space, the smallest convex set containing S. In the plane, the convex hull can be visualized as the shape assumed by a rubber band that has been stretched around the set S and released to conform as closely as possible to S. (1997-08-03)
Convex hull         
  • A [[bagplot]]. The outer shaded region is the convex hull, and the inner shaded region is the 50% Tukey depth contour.
  • Convex hull of a bounded planar set: rubber band analogy
  • Convex hull of points in the plane
  • Convex hull ( in blue and yellow) of a simple polygon (in blue)
  • 2019}} Mg<sub>2</sub>C<sub>3</sub> is expected to be unstable as it lies above the lower hull.
  • An [[oloid]], the convex hull of two circles in 3d space
  • Partition of seven points into three subsets with intersecting convex hulls, guaranteed to exist for any seven points in the plane by [[Tverberg's theorem]]
  • The [[witch of Agnesi]]. The points on or above the red curve provide an example of a closed set whose convex hull is open (the open [[upper half-plane]]).
NOTION IN TOPOLOGICAL VECTOR SPACES
Convex envelope; Closed convex hull; Convex Hull; Convex span; Convex closure; Minimum convex polygon; Applications of convex hulls
In geometry, the convex hull or convex envelope or convex closure of a shape is the smallest convex set that contains it. The convex hull may be defined either as the intersection of all convex sets containing a given subset of a Euclidean space, or equivalently as the set of all convex combinations of points in the subset.
Locally convex topological vector space         
TYPE OF TOPOLOGICAL VECTOR SPACE
Locally convex; Locally convex space; Locally convex spaces; Locally convex topology; Locally convex basis; Locally convex vector space; LCTVS; Finest locally convex topology
In functional analysis and related areas of mathematics, locally convex topological vector spaces (LCTVS) or locally convex spaces are examples of topological vector spaces (TVS) that generalize normed spaces. They can be defined as topological vector spaces whose topology is generated by translations of balanced, absorbent, convex sets.

Википедия

Ecoregion conservation status

Conservation status is a measure used in conservation biology to assess an ecoregion's degree of habitat alteration and habitat conservation. It is used to set priorities for conservation.

Conservation status and biological distinctiveness were the two measures used by the World Wildlife Fund (WWF) to develop the Global 200, a list of high-priority ecoregions for conservation, and for the WWF's conservation assessments at continent (or biogeographic realm) scale.

Ecoregions are classified into one of three broad categories: "critical/endangered" (CE), "vulnerable" (V), or "relatively stable/relatively intact" (RS). The WWF's conservation status index is determined by analyzing four factors:

  • Habitat loss is the percentage of an ecoregion's habitat that has been converted to agriculture or urban areas;
  • Habitat blocks measures of the size of remaining habitat blocks;
  • Habitat fragmentation is the degree to which remaining habitat is fragmented, measured as the ratio of the total perimeter of remaining habitat blocks to their total area;
  • Habitat protection measures the area of remaining habitat in protected areas, and the degree of protection provided (IUCN protected area categories).

Additional factors considered for the Global 200 include degree of habitat degradation, degree of protection needed, degree of urgency for conservation needs, and types of conservation practiced or required.